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    Magnetic recording media comprising a silicon carbide corrosion barrier layer and a c-overcoat
    4.
    发明授权
    Magnetic recording media comprising a silicon carbide corrosion barrier layer and a c-overcoat 失效
    磁记录介质包括碳化硅腐蚀阻挡层和c覆盖层

    公开(公告)号：US06572958B1

    公开(公告)日：2003-06-03

    申请号：US09621530

    申请日：2000-07-21

    申请人： Kueir-Weei Chour ,  Liji Huang ,  Jie-Ming Yu ,  Kuo-Hsing Hwang ,  Chung Shih ,  Lin Huang ,  Charles Leu ,  Qixu Chen ,  Rajiv Yadav Ranjan

    发明人： Kueir-Weei Chour ,  Liji Huang ,  Jie-Ming Yu ,  Kuo-Hsing Hwang ,  Chung Shih ,  Lin Huang ,  Charles Leu ,  Qixu Chen ,  Rajiv Yadav Ranjan

    IPC分类号： G11B572

    CPC分类号： G11B5/8408 ,  G11B5/72 ,  Y10T428/2495 ,  Y10T428/265

    摘要： A magnetic recording medium is provided with a dual layer protective overcoat system comprising a SiC corrosion barrier layer and a carbon-containing protective overcoat thereon. The SiC layer effectively prevents or significantly reduces Co and Ni diffusion to the medium surface. Embodiments include magnetic recording media comprising a SiC corrosion barrier layer over a magnetic layer, an overlying protective layer of amorphous hydrogenated carbon, amorphous nitrogenated carbon or amorphous hydrogen-nitrogenated carbon, and a lubricant topcoat thereon. Embodiments of the present invention further include magnetic recording media comprising Ni—P plated aluminum, Ni-plated glass or non-conductive substrates including glass, glass-ceramic and ceramic materials. Embodiments of the present invention further include a dual protective overcoat system having a combined thickness less than about 100 Å, such as less than about 75 Å, e.g., less than about 50 Å, with the SiC corrosion barrier layer having a thickness ranging from 1 Å to 40 Å.

    摘要翻译： 磁记录介质设置有双层保护外涂层系统，其包括SiC腐蚀阻挡层和其上的含碳保护外涂层。 SiC层有效地防止或显着减少Co和Ni扩散到介质表面。 实施例包括在磁性层上包含SiC腐蚀阻挡层的磁记录介质，无定形氢化碳的上覆保护层，无定形氮化碳或无定形氢化氮，以及其上的润滑剂面涂层。 本发明的实施例还包括包含Ni-P镀铝，镀Ni玻璃或包括玻璃，玻璃 - 陶瓷和陶瓷材料的非导电衬底的磁记录介质。 本发明的实施方案还包括双重保护外涂层系统，其具有小于约，例如小于约，例如小于约50埃的组合厚度，其中SiC腐蚀阻挡层的厚度范围为1 Å至40Å。

    PERPENDICULAR MEDIA WITH REDUCED SIDE TRACK ERASURE
    6.
    发明申请
    PERPENDICULAR MEDIA WITH REDUCED SIDE TRACK ERASURE 有权
    具有减少侧面跟踪的PERPENDICULAR MEDIA

    公开(公告)号：US20100177439A1

    公开(公告)日：2010-07-15

    申请号：US12353229

    申请日：2009-01-13

    申请人： Kaizhong Gao ,  Qixu Chen ,  Chung-Hee Chang ,  Thomas Patrick Nolan

    发明人： Kaizhong Gao ,  Qixu Chen ,  Chung-Hee Chang ,  Thomas Patrick Nolan

    IPC分类号： G11B5/82

    CPC分类号： G11B5/82 ,  G11B5/667

    摘要： A media for perpendicular recording and a method of creating the media is provided. The media includes a hard recording layer and a soft underlayer (SUL). The SUL is composed of at least two anti-ferromagnetically coupled (AFC) sub-underlayers. The sub-underlayers respond to a magnetic field established during dynamic reversal with respective magnetic fields. The sub-underlayers are formed and disposed to differ in one or more magnetic moment, anisotropy, and thickness, so that their respective magnetic fields constructively interfere in one or more points in the hard recording layer, thereby reducing a total SUL magnetic field response to the dynamic reversal field approximately to zero at one or more points in the hard recording layer, which reduces side track erasure.

    摘要翻译： 提供了用于垂直记录的介质和创建介质的方法。 介质包括硬记录层和软底层（SUL）。 SUL由至少两个反铁磁耦​​合（AFC）子底层组成。 副底层响应于用相应的磁场在动态反转期间建立的磁场。 亚底层被形成和设置为在一个或多个磁矩，各向异性和厚度上不同，使得它们各自的磁场建构性地干扰硬记录层中的一个或多个点，从而减少总SUL磁场响应 在硬记录层中的一个或多个点处的动态反转场大致为零，这减少了侧轨道擦除。

    Target shields for improved magnetic properties of a recording medium
    10.
    发明授权
    Target shields for improved magnetic properties of a recording medium 有权
    用于提高记录介质的磁性能的目标屏蔽

    公开(公告)号：US06482301B1

    公开(公告)日：2002-11-19

    申请号：US09326245

    申请日：1999-06-04

    申请人： Qixu Chen ,  Charles Leu ,  Mark Anthony Shows ,  Paul Stephen McLeod ,  Rajiv Yadav Ranjan

    发明人： Qixu Chen ,  Charles Leu ,  Mark Anthony Shows ,  Paul Stephen McLeod ,  Rajiv Yadav Ranjan

    IPC分类号： C23C1432

    CPC分类号： G11B5/851 ,  C23C14/34 ,  H01J37/34 ,  H01J37/3447

    摘要： A collimator system is disclosed for use in an in-line pass-by sputtering system during the fabrication of recording media to improve the data storage density and read/write performance characteristics of the media. The collimator system includes a collimator shield and a collimator honeycomb. The shield includes a rectangular tube having a flange and a frame at inner and outer ends, respectively. The various components of the shield in part serve to prevent possible contamination of substrates due to target atom accumulation on the chamber walls during the sputtering process. The collimator honeycomb is provided for blocking target atoms from contacting the substrate at low incident angles. The collimator honeycomb is comprised of a plurality of collimators which are identical to each other. In a preferred embodiment, the collimators have a hexagonal cross-section taken from a perspective perpendicular to the substrate. The collimators may also have other geometric shapes. It is also contemplated that more than one collimator honeycomb level be used in alternative embodiments.

    摘要翻译： 在制造记录介质期间公开了一种用于在线传递溅射系统的准直器系统，以改善数据存储密度和读/写性能特性。 准直仪系统包括准直器屏蔽和准直器蜂窝。 护罩包括分别在内端和外端具有凸缘和框架的矩形管。 屏蔽件的各种部件部分地用于防止在溅射过程期间由于靶室原子在室壁上的积聚而引起的基板的可能污染。 提供准直器蜂窝用于阻止目标原子以低入射角接触基板。 准直器蜂窝体由多个彼此相同的准直器构成。 在优选实施例中，准直器具有垂直于衬底的透视图的六边形截面。 准直器也可以具有其他几何形状。 还可以想到，在替代实施例中可以使用多于一个准直器蜂窝等级。